John r



J. R. SEXTON.

LUBRICATOR.

APPLICATION FILED lUNE 14. I919.

1,325,117. Patented Dec. 16,1919.

UNITED ST cor-11v a. SEXTON, or naa'rronn, CONNECTICUT.

LUBRICATOB.

Specification of Letters'latent. Patented Dec, :16, 1919 Application filed June 14, 1919. Serial No. 304,169.

To all whom it may concern:

' Be it known that I, J OHN R. SnX'roN, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Lubricators, of which the following is a specification.

This invention relates to lubricators and it is susceptible of advantageous use in many different connections. I have several motives in view, among them being the provision in an article of the character set forth, of means for positively precluding the waste and consequent loss of the lubricant whether it be in the form of oil or grease, although it is usually the former. Of course it might be-of some-other character. The lubricant can be easily introduced into the device and its passage to the part to be lubricated is a free and ready one. The device is also capable of inexpensive and ready production.

In the drawings accompanying and forming part of the present specification I have shown in detail several of the different forms of embodiment of the invention which to enable those skilled in theart to practise the same will be set forth fully in the following description while the noveltyof the invention will be included in the claims succeeding said description. I do not restrict myself to this exact disclosure. I may in fact depart therefrom in several respects within the scope of the invention defined by said claims.

Referring to said drawings:

Figure 1 is a top plan view of a lubricator involving the invention, showing the same mounted on a part and in closed relation.

Fig. 2 is a vertical sectional view of the same.

Fig. 3 is a practically similar view with the cap member open and in section.

Fig. 4. is an approximately like view as seen from a different angle and with the cap in elevation.

Fig. 5 is a horizontal section on the line I 5+5 of Fig. 4 looking in the direction of the arrows.

Figs. 6 and 7 are modifications hereinafter more particularly described.

Like characters refer to like parts throughout the several views.

As will be obvious the lubricator maybe employed in many different fields, being capable of use in any ofthose wherethose of the ordinary kind are utilized at the present time. In the drawings '1 have shown a Journal as 2 and its bearing as 3. Clearly these may be of any nature and functlon in any manner. The ofiice of the lubrlcator associated therewith, is to supply a lubricant, generally oil, to the surfaces-of the parts 2 and 3 which are to be lubricated. The lubricator involves in its-organizatlon, a body member which is usually'fixed to a complemental member. Thebody memher I have selected for illustration is denoted in a general way by f and it is of 3 of the bearing 2, being ordinarily driven into place although this may not alwaysbe necessary. The tubular body et may vary as to shape although as represented it is cylindrical, to fit the correspondingly shaped bore 0. Said tubular body as shown, is internally of two diameters, the portion -6 of less diameter being below the portion'7 of greater diameter. This produces an annularshoulder or stop 8 at the junction of the two portions which functions as I will hereinafter explain.

Saidtubular body 4 asshown, isadapted to receive a cap-member as 9 which is capab le of movement when necessary, in theiportion 7 of greater diameter of the tubular body, this movement in fact being a com pound one as I will hereinafter explain. I mlght state that the cap-member has two extreme positions one'its normal or closed position and the other its open position. When the cap member is in the former relation it effectually precludes waste or escape ofthe lubricant although itdoesnot interfere with the free supply ofthe same to the part to be lubricated. When the capmember is in the latter relation the body member, through the cap-member, maybe supplied, if necessary with tlle lubricant.

Said cap-member is comparatively freely movable in the body member. 7, It is provided with an operating head. This head may vary decidedly as to form. As "shownthe head or upper or outerendofthe capmember, has a slot'lO which is intended to receive a suitable implement by which the cap member may be operated, when necessary to open it.

The cap member is closed in some suitable way, as by a spring means, which functions to maintain said cap member normally and constantly in the closed relation. Obviously the spring means may vary, the spring 11 of coil pull type being shown for the purpose. Said spring is inclosed by the body member its lower end being connected to the pin 12 while its upper end-is connected to a pin 13. The pin 12 it will be clear extends across the body member 2 within the same and near the lower end thereof while the pin 18 extends across the cap member near the lower end of the same. Said spring tends to constantly maintain the lower end of the cap member 9 substantially against the shoulder or stop 8 so that at such time the escape of oil is effectually prevented at such place. As represented the cap member has in its side, an opening or hole 14 through which the lubricant can be introduced, when the cap member is pulled out in the manner hereinafter set forth. 7

As shown the cap member is furnished with a slot 15 through it and of spiral or screw formation, the slot being adapted to receive a pin as 16 extending inwardly from the wall of the body of the cap member near the upper end thereof. This spiral slot has at its lower end the lateral extension 17 which is practically straight and which as represented extends in a direction practically'at right angles to the longitudinal axis of the cap member. This lateral extension acts when required as a locking or holding means, to secure the cap member in its open position represented in Fig. 4, while the lubricant is being introduced by the way of the cap member into the body member.

In Fig. 2 the cap member is shown as occupying its normal position its lower end being held firmly and substantially against the shoulder or stop 8 by the pull of the spring 11. The wall of the upper reduced portionof the body, of course closes the hole 14:. In view of these two circumstances it is not possible for any of the lubricant to waste. It will be assumed that it is desired to replenish the article with the lubricant. In this event the following procedure may be adopted: A screw driver or similar implement will be inserted into the slot 14 and the cap member 9 will be turned thus causing the walls of the spiral slot 15 to feed out the cap member with a rotary and endwise movement, the action continuing until the pin or stud 16 enters the straight extensionor continuation 17 of the spiral slot, which as I have noted positively holds the cap member in its open relation to permit the supply of the lubricant through the hole 14 of the cap member. To return the cap member to its operative relation, it is turned to carry the pin or stud 16 out of the straight extension 17. The instant that this occurs the pull of the spring 11 will draw the cap member 9 into the body until the lower or inner edge of the former abuts against the shoulder or stop 8.

In Figs. 6 and 7 I have shown two quite cap by 31. The only difierence again is in the head 32 which is difierent from the head of the cap 9 of Figs. 1 to 5 and that designated by 22 in Fig. 6.

What I claim is:

1. A lubricator comprising a tubular body, a cap member within the body, having an opening for the introduction of a lubricant, the body having an interior annular shoulder, and means inclosed by the cap member, for normally holding the same against the shoulder ant the interior wall of the body closing said opening when the cap member is against said shoulder.

2. A lubricator comprising a tubular body interiorly of two diameters, a cap member having an opening for the introduction of a lubricant and situated in the smaller portion of the body, and spring means inclosed by the cap member, for normally holding the lower edge of the cap member against said shoulder, the wall of the larger portion of the interior of the body closing said opening yyhen the cap member is against said shouler. 3. A lubricator comprising a tubular body interiorly of two diameters, a cap member situated in the larger portion of the body and having an opening for the introduction of a lubricant, and a spring inclosed by the cap member, for normally holding the lower edge of the cap member against said shoulder, the wall of the interior of the larger portion of the body closing said opening yyhen the cap member is against said shoul- 1. A lubricator comprising a tubular body, a cap member disposed in the body and having a circumferential spiral slot and also having an extension constituting a continuation of the inner end of the slot the extension being at right angles approximately to the longitudinal axis of the cap member, and a pin fixed in the tubular body and adapted to extend into said slot and the extension thereof, to cause the cap member to turn as it is retracted, the pin being adapted to enter the straight extension at the conclusion of the retractive movement to positively maintain such relation.

5. A lubricator comprising a tubular body, a cap member disposed in the body and having a circumferential spiral slot and also having an extension constituting a continuation of the slot, the extension being approximately at right angles to the longitudinal axis of the cap member, a pin fixed in the tubular body and adapted to extend into said slot and the extension thereof to thus cause the cap member to turn as it is retracted, the pin being adapted to enter said extension at the conclusion of the retractive movement, to positively hold the cap member in its retracted position, a spring acting against the cap member to advance it, the body having an interior annular shoulder to be engaged by the lower edge of the cap member when the latter is in its retracted position.

6. A lubrioator comprising a tubular body having an upper and larger inner cylindrical portion and a lower smaller inner cylindrical portion, thereby presenting an annular shoulder at the junction of the two portions, a cap member disposed in the larger portion of the body and having retractive and advanced positions, the lower edge of the cap member being adapted to bear against said shoulder when the cap member is in its addinal axis of the cap member, the pin fitting Y in the extension when the cap member is in its retracted position and disposed in the upper portion of the slot when the cap member is in its advanced position, the cap member having a lubricant-receiving opening which is uncovered when the cap member is in its retracted position and when said pin is in said extension, and a spring connected with the cap member and also with the body, inclosed by them both and constantly tending to advance the cap member.

In testimony whereof I aflix my signature in the presence of two witnesses. JOHN R. SEXTON- Witnesses:

HEATH SUTHERLAND, HERBERT S. BULLARD. 

